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The purpose of this paper is to examine the success of constrained control on reducing motion blur which occurs as a result of helicopter vibration.

Constrained controllers are designed to reduce the motion blur on images taken by helicopter. Helicopter vibrations under tight and soft constrained controllers are modeled and added to images to show the performance of controllers on reducing blur.

The blur caused by vibration can be reduced via constrained control of helicopter.

The motion of camera is modeled and assumed same as the motion of helicopter. In model of exposing image, image noise is neglected, and blur is considered as the only distorting effect on image.

Tighter constrained controllers can be implemented to take higher quality images by helicopters.

Recently, aerial vehicles are widely used for aerial photography. Images taken by helicopters mostly suffer from motion blur. Reducing motion blur can provide users to take higher quality images by helicopters.

Helicopter control is performed to reduce motion blur on image for the first time. A control-oriented and physic-based model of helicopter is benefited. Helicopter vibration which causes motion blur is modeled as blur kernel to see the effect of helicopter vibration on taken images. Tight and soft constrained controllers are designed and compared to denote their performance in reducing motion blur. It is proved that images taken by helicopter can be prevented from motion blur by controlling helicopter tightly.

The purpose of this paper is to examine the factors that influence farmers' preference for the use of Islamic banks in Turkey and to investigate their knowledge level and perception about Islamic finance.

Survey data used in this study is obtained by drawing a sample of 1902 farmers who are members of the Agricultural Credit Cooperatives Union (ACCU) from 37 provinces of Turkey. Pearson's Chi-square test is used to analyze the association between the demographic features of farmers, conventional bank usage and Islamic bank usage. Binary logistic regression model is used to estimate the factors influencing the preference for Islamic banks. Explanatory variables include knowledge on Islamic banking and finance, perception of compliance to religion, saving ability and cost concern along with the control variables of Islamic bank branch number in the region and age of respondent. Robustness check is conducted via alternative models using ordinary least squares (OLS) and logistic regression.

Less than 10% of the participant farmers use Islamic banks and 59% declare they know nothing about Islamic banking. Age, education level, income level, nonagricultural income level, saving ability, duration of working in agriculture, land size and region are significantly related to farmers' preference of using Islamic banks. Knowledge level, perception of religious compliance, saving ability and cost concern are statistically significant factors that influence the probability of using Islamic banks.

This study does not include the analysis of the relationship between being religious and using Islamic banks because questions related to the assessment of religious practice were excluded due to the ACCU's sensitivity to investigate personal beliefs. Therefore, future studies can expand the scope of this research by investigating religiousness. The sample is chosen from the ACCU members who are already benefiting from a formal source of credit; therefore, the results should not be attributed to all farmers.

Islamic banks and microfinance institutions' further engagement in the agricultural sector and ACCU's implementation of Islamic finance instruments.

Islamic banks' further diversification in the agricultural sector and ACCU's implementation of Islamic finance instruments.

To the best of the authors' knowledge, this paper is the first to investigate the farmers' perception and preference of Islamic banking in Turkey. The sample size of 1902 is much larger and geographically diversified compared to studies in agricultural finance. This study will be valuable for the agricultural finance empirical studies in Turkey as well as an important addition to the emerging literature on Islamic finance.

The aim of this paper is to redesign of morphing unmanned aerial vehicle (UAV) using neural network for simultaneous improvement of roll stability coefficient and maximum lift/drag ratio.

Redesign of a morphing our UAV manufactured in Faculty of Aeronautics and Astronautics, Erciyes University is performed with using artificial intelligence techniques. For this purpose, an objective function based on artificial neural network (ANN) is obtained to get optimum values of roll stability coefficient (C_lβ) and maximum lift/drag ratio (E_max). The aim here is to save time and obtain satisfactory errors in the optimization process in which the ANN trained with the selected data is used as the objective function. First, dihedral angle (φ) and taper ratio (λ) are selected as input parameters, C*_lβ and E_max are selected as output parameters for ANN. Then, ANN is trained with selected input and output data sets. Training of the ANN is possible by adjusting ANN weights. Here, ANN weights are adjusted with artificial bee colony (ABC) algorithm. After adjusting process, the objective function based on ANN is optimized with ABC algorithm to get better C_lβ and E_max, i.e. the ABC algorithm is used for two different purposes.

By using artificial intelligence methods for redesigning of morphing UAV, the objective function consisting of C*_lβ and E_max is maximized.

It takes quite a long time for E_max data to be obtained realistically by using the computational fluid dynamics approach.

Neural network incorporation with the optimization method idea is beneficial for improving C_lβ and E_max. By using this approach, low cost, time saving and practicality in applications are achieved.

This method based on artificial intelligence methods can be useful for better aircraft design and production.

It is creating a novel method in order to redesign of morphing UAV and improving UAV performance.

This study aims to examine the performance and volatility of Turkey Real Estate Investment Trusts (Turkish REITs) as the world is adjusting to the new normal situation in every aspect of REITs' business activities.

The prices of REITs were acquired from 26 Turkish REITs in this study, but owing to autocorrelation difficulties, 14 Turkish REITs were employed in the analysis. The ten-year long-term bond of the Turkish Government was also utilized and the period of data obtained was based on availability. The performance of Turkish REITs was evaluated using Sharpe's ratio and Treynor's ratio, and the volatility was assessed using MGARCH-BEKK.

The authors found out that Turkish REITs are constantly underperforming and the REITs' returns remain highly volatile and persistent. In addition, findings showed evidence of volatility clustering and the asymmetric impact of shocks. This study further revealed the uniqueness of each of the Turkish REITs due to the lack of evidence of multicollinearity.

However, the limitation of this study is the constraint in obtaining more macro-economic variables of more than ten-years of Turkey's Government bond and the study focused mainly on Turkish REITs.

The result suggests that since Turkish REITs are not mandatory to payout 90% of taxable earnings as dividends, high performance and an appropriate risk management approach are expected. The need for timely revealing performance of T-REITs and associated uncertainty may trigger better performance as discussed in the relationship between disclosure and performance which is recently emphasized in a recent study by Koelbl (2020). With current performance and associated uncertainty in Turkish REITs, the need to protect Turkish REITs investors is highly essential. The result further educates REIT investors that diversification benefits of REITs tend to reduce in extremely risky situations.

This is the first study in the context of Turkish REITs that comprehensively integrated market capitalization of REITs and simultaneous evaluation of performance and the volatility of the Turkish REITs as the world adjusts to the new normal.

This study aims to establish the relationship between house acquisitions by foreigners (HAF) and house price index (HPI) in Turkey.

Due to the nature of this study, the data spans from January 2020 to March 2022. The house price index and the number of foreign house acquisitions across three provinces: Ankara, Izmir and Bursa, and national-level data were obtained from the TurkStat database. Consumer price index (CPI) and Turkish interest rates are control variables. In addition, monthly Turkish interest rates and CPI were obtained from the investing.com and TurkStat database, respectively. Furthermore, this study used autoregressive-distributed lag and Toda Yamamoto Granger causality models to avoid analysis bias. HPI and HAF are the variables used to accomplish the objectives of this study.

This study established a short-run equilibrium between foreign house acquisitions at the provincial and national levels. The short-run deviations were adjusted faster, ranging from 57.53% to 89.24% for some provinces, while Izmir is struggling to adjust at 6.48%. Both unidirectional and bidirectional Granger causality evidence suggests that the Turkish house price index increases at the national and provincial levels. This finding suggests the need for continuous policy intervention in the Turkish housing market because house prices play a pivotal role in Turkish economic development and daily lives.

This study’s scope and single-country study are its limitations. However, those limitations make the findings appropriate for the country of the study rather than generalising the results.

The study provides empirical evidence that foreign housing acquisition contributes negatively to housing affordability in Turkey and calls for authority intervention. This is because housing is considered shelter, a fundamental need to which citizens are expected to be entitled. Most citizens are low- and medium-income earners who may be unable to afford a house out of their income if it becomes costly. Once the expenditure to secure housing exceeds 30% of their income, it is considered unaffordable.

To the authors' best knowledge, this is the first empirical study that established the influence of foreign house acquisitions on Turkish house price increases and adversely reduced house affordability by Turkish citizens. The study is the first on foreign Turkish housing acquisition that used both theory of ownership and justice motivation theory to explain HAF.

This study aims to investigate the microstructure and the abrasive wear features of the untreated and pack borided GGG 50 quality ductile iron under various working temperatures.

GGG 50 quality as-cast ductile iron samples were pack borided in Ekabor II powder at 900°C for 3 h, followed by furnace cooling. Structural characterization was made by optical microscopy. Mechanical characterization was made by hardness and pin-on-disc wear test. Pin-on-disc test was conducted on a 240-mesh Al₂O₃ abrasive paper at various temperatures in between 25 and 450°C.

Room temperature abrasive wear resistance of the borided ductile iron increased with an increase in its surface hardness. High-temperature abrasive wear resistances of the borided ductile iron linearly decreased with an increase in test temperature. However, the untreated ductile iron exhibited relatively high resistance to abrasion at a temperature of 150°C.

This study can be a practical reference and offers insight into the effects of boriding process on the increase of room temperature wear resistance. However, above 150°C, the untreated ductile iron exhibited similar abrasive wear performance as compared to the borided ductile iron.

Introduction: Skill development is crucial in developing economies by enhancing productivity and creating employment opportunities. At the macro level, it also leads to industrial development and economic growth.

Purpose: The research is to identify the types of skills required for increasing the probability of employability of labour. It also aims to define the challenges and opportunities in skill development to drive change.

Need of the Study: Studying opportunities and challenges for skill development in developing economies is essential for achieving sustainable economic growth, reducing poverty, increasing employment opportunities, and promoting global competitiveness.

Research Methodology: Some skills are recognised through research that has been published to determine the skill set needed to increase labour productivity. To draw lessons, some skill development initiatives by various companies are also identified and presented in case studies. Additionally, several government programs are available to assess the possibilities and prospects for skill development in the Indian market.

Practical Implications: The research will be valuable in micro and macro decision making. At the micro level, research is advantageous for a business person to initiate the skill development of its employees by using government schemes. Nations other than India can understand the policy framework for skill development.

Findings: The term ‘skilling’ has become fashionable. Due to the need for skill-based earnings data, only some studies examine the return on skill (ROS) of the labour market. Skill development plays a significant role in bringing change at the micro and macro levels. Hence it is necessary to exploit all opportunities for skill development.

This study aims to gain a qualitative understanding of the residents’ perspective on the complexities of built environment management in Turkey. In addition, facility management (FM) is a newly emerging field in Turkey and therefore the paper contributes to the existing knowledge base on the global status of the field.

In-person surveys with the residents in the North Ankara and Dikmen Valley urban transformation projects were evaluated. The data have been collected from 660 residents through surveys using the random sampling method. Chi-square tests were used to examine the frequency and percentage distributions of the data, as well as the relationship between categorical variables. If the expected values in the chi-square analysis were low/insufficient, the Monte Carlo simulation method was used. A value of 0.05 was used as the level of significance, and it was stated that there was a significant relationship/dependency in the case of p < 0.05, and that there was no significant relationship/dependency in the case of p > 0.05.

The research identified that there was a prevailing opinion that professional FM services would likely increase the overall cost of maintenance, but satisfaction was lower in areas where management was carried out by a resident management group. It has been observed that there is a significant dependency between the regions with the answers given to the statements “Management by professional management companies causes an increase in costs” and “Management by the homeowners is more advantageous than working with professional management companies.”

The concept of “gecekondu” is unique to Turkey and the operation, maintenance and quality expectations of gecekondu owners and those of the more affluent residents can be significantly different. This fascinating process of illegal housing-to-urban transformation and the current need for many more urban transformation projects in the country distinguished the Turkish urban transformation approach from other countries. In addition, to the best of the authors’ knowledge, there is no other study in Turkey regarding the FM of urban transformation areas with data of this size.

The facility management (FM) sector, which is developing rapidly, is making slower progress in Turkey compared to Europe and the USA. This paper aims to research the underlying issues leading to FM practices and offer insights into the implications of FM-related policies, especially for large urban transformation projects.

The study used a mixed-methods research design and collected qualitative data through semi-structured interviews with building/site managers and quantitative data through structured surveys with residents. Forty-nine building/site managers and 660 residents participated in the interview and survey from Turkey’s North Ankara and Dikmen Valley urban transformation projects.

The FM by residents, performed by the managers selected among homeowners, was preferred to the professional FM in Turkey. Education level, age, homeownership and duration of living in the region were associated with selecting FM practices. Cost also had an important place among the selection criteria, and the standard view from the residents was that professional FM would cause a cost increase. However, interviews with building/site managers in North Ankara and Dikmen Valley Urban Transformation areas revealed that a significant part of the problem resulted from insufficient knowledge and experience in FM.

Within the scope of the research, two urban transformation projects in Ankara Province were selected, and the survey was limited to the North Ankara Entrance Urban Transformation Project and Dikmen Valley Urban Transformation Project areas. Although there is a need to improve the understanding of FM in all facilities, built environments and collective buildings, collective buildings in urban transformation areas due to several constraints, those other identified areas are postponed for future study. In addition, collective buildings located in transformation areas differ from others in discussing the social dimension and the impact of management.

Within the scope of the research, two urban transformation projects in Ankara Province were selected, and the survey was limited to the North Ankara Entrance Urban Transformation Project and Dikmen Valley Urban Transformation Project areas. Although there is a need to improve the understanding of FM in all facilities, due to several constraints built environments and collective buildings in urban transformation areas, are postponed for future study. In addition, collective buildings located in transformation areas differ from others in discussing the social dimension and the impact of management.

This study evaluates two different FM approaches: FM by residents and professional FM, implemented in Turkey and identifies the criteria for choosing the FM practice. In addition, both building/site managers and residents evaluate different perspectives on FM. This study is unique because it compares different FM practices in Turkey and the criteria for residents to prefer different FM practices.

This study aims to identify the main factors that drive the differences in the levels of forward-looking information disclosure (FLID) across four countries. This study goes beyond the firm-specific characteristics to the countries-specific factors to explain the observable differences in the level of FLID among the UK, Italian, Hong Kong and Chinese American Depositary Receipts (ADRs) firms trading in US Exchanges.

To validate the levels of FLID, corporate financial information environment (CFIE)-final reports structure extractor (FRSE) was conducted on the annual reports of a sample of 353 listed firm observations in 2020 across four different countries. Also, the ordinary least square regression model was used to examine the proposed relationships.

The empirical results indicate that the level of FLID is highest among the Chinese ADRs firms trading in US Exchanges and UK listed firms. Also, ownership concentration and gender diversity have a positive correlation with the level of FLID. Additionally, long-term orientation positively influences the level of FLID. Considering the moderation effect of power distance and masculinity dimensions, countries with larger power distance tend to have a lower impact of ownership concentration on the level of FLID, whereas countries with higher masculinity tend to have a lesser positive relationship between gender diversity and the level of FLID.

Notwithstanding, this study provides novel and persuasive evidence regarding the effects of firm- and country-specific characteristics as possible determinants of forward-looking disclosures, drawing on evidence from international companies with free floats, boards with female quotas and cultural values including masculinity and long-term orientation. This work offers unique insights from the upper echelons lens, which implies that firms need to obtain a critical mass of gender diversity to achieve a more balanced forward-looking perspective on their annual reports.